Torpedo-guard



A. D. DUNIGAN.

TOHPEDO GUARD.

APPLICATION FILED pm. 20, 1919;

1,335,670. 1 Patented Mar-30,1920.

2 SHEETS-SHEET I.

A. D. DUNIGAN.

TORPEDO GUARD.

APPLICATION FI'LED ocT. 20. 191-9.

1,335,670a ented Mar- 30, 1929;-

q 2 SHEETS-SHEET 2 Q/Ui MMAM v ALFRED D. DUNIGAN, OF DARWIN, OKLAHOMA.

TGRPEDO-GUARD.

Specification of Letters Patent.

Patented Mar. 30, 1920.

Application filed October 20, 1919. Serial No. 331,940.

To all whom it may concern:

Be it known that I, ALFRED D. DUNIGAN,

a citizen of the United States, residing at Darwin, in the county of Pushmataha and State oi? Oklahoma, have invented new and useful improvements in Torpedo-Guards, of which the following is a specification.

This invention relates to a torpedo guard, and the object is to provide for each side of the vessel a guard comprising a member which may if desired be of substantially the same length as the vessel and extending continuously from the bow to the stern, this member being suitably supported and braced for er'i ecting the purpose desired.

A further object is to provide, in connection with the guard of the type indicated, certain mounting means comprising a plurality of outwardly extending arms to which the guard is secured, with certain novel bracing means connecting the arms with the respective guard units at the bow and at the stern.

With the foregoing and other objects in view, the invention consists in the novel constr .ction, combination and arrangement of elements hereinafter described and claimed.

In the drawings, Figure l is a view of a vessel in side elevation,'with the guard applied thereto, and Fig. '2 is a top plan view of the structure of Fig. 1, the showing of the vessel being diagrammatic.

In carrying out my invention I provide a plurality of guards mounted respectively at the sides of the vessel and suitably spaced therefrom, these guards being designated 10 and 12, and extending from a point some what beyond the bow to a point beyond the stern, in order that there may be no interference with the rudder or propellers.

The enes of the guard are deflected toward each other at the bow and at the stern and are there connected by horizontal securing devices designated 15.

T he respective guards are suitably supported by means of outwardly extending arms 16 having connection with the upper portions of the guard at the required distance above the waterline. Connected with the forward arms 16 on each side of the vessel are braces 18 and 19 extending downwardly to a common point near the point of I connection between the lower portions of the respective guards. These inclined braces may be connected with each other by transverse member 19 in order to provide against displacement due to lateral strain.

The respective guards are similarly braced atthe stern, the transverse tie members or braces there located being designated 20.

Electric conductors 21 may be afiiXe-d to the guard and extend diagonally from top to bottom across various sections thereof and may carry explosive devices 22, the conductors preferably being formed of cables so that individual explosive devices may be connected with certain of the conductors of the cable and exploded independently of the others. for the purpose of destroying mines, torpedoes or the like which may be imme. diately adjacent to the guard.

What is claimed is:

1. In a device of the class described, a plurality of outwardly extending arms, a guard unit supported by said arms, a second guard unit similarly supported on the oppo site side of the vessel, means for connecting the units with each other adjacent to the bow and the stern and a plurality of diverging inclined braces connected with the guard Lmits at the point of connection with each other at the how, the opposite ends of the diverging members being connected with the outwardly extending arms on opposite sides of the vessel.

2. In a device of the class described, a plurality of supporting arms, a guard unit carried thereby on one side of the vessel, a

-second guard unit similarly mounted on the opposite side of the vessel, means for connecting the guard units with each other at the bow and at the stern, a plurality of inclined braces connected with. the outwardly extending arms on opposite sides of the-vessel adjacent to the bow and extending downwardly to a point near the lower portions of the units, said members last named converging, and transverse elements connecting the converging portions.

In testimony whereof I afiix my signature ALFRED D. DUNIGAN 

